The Aquash Brush water brush is a brush with an integrated water tank. Simply unscrew, fill with water, and start painting. No more water cups, no risk of spills, and the water for painting always stays clean and clear. It is suitable for all watercolor techniques as well as for brush lettering and coloring books. Ideal for use with watercolors and all water-soluble products. Thanks to capillary action, the color does not flow into the water tank, keeping the water clean. With its large water tank, it is particularly practical for outdoor painting. High-quality, shape-retaining nylon brush tip.